Home / 550,969.02-760,278.82-309,278.18

Finding the Fourth Proportional to 550,969.02, 760,278.82 and 309,278.18

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Solution

The fourth proportional to 550,969.02, 760,278.82 and 309,278.18 is: 426,771.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,969.02 : 760,278.82 = 309,278.18 : x
  2. Step 2: Convert to fraction form
    550,969.02/760,278.82 = 309,278.18/x
  3. Step 3: Cross multiply
    550,969.02x = 760,278.82 × 309,278.18
  4. Step 4: Simplify right side
    550,969.02x = 235,137,649,742.15
  5. Step 5: Solve for x
    x = 235,137,649,742.15/550,969.02
  6. Step 6: Final answer
    x = 426,771.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.